How to use

handleException

method

in

org.jgroups.protocols.pbcast.STATE_TRANSFER

/** Set the digest and the send the state up to the application */
protected void handleStateRsp(final Digest digest, Address sender, byte[] state) {
  try {
    if(isDigestNeeded()) {
      punchHoleFor(sender);
      closeBarrierAndSuspendStable(); // fix for https://jira.jboss.org/jira/browse/JGRP-1013
      if(digest != null)
        down_prot.down(new Event(Event.OVERWRITE_DIGEST, digest)); // set the digest (e.g. in NAKACK)
    }
    waiting_for_state_response=false;
    stop=System.currentTimeMillis();
    log.debug("%s: received state, size=%s, time=%d milliseconds", local_addr,
         (state == null? "0" : Util.printBytes(state.length)), stop - start);
    StateTransferResult result=new StateTransferResult(state);
    up_prot.up(new Event(Event.GET_STATE_OK, result));
    down_prot.down(new Event(Event.GET_VIEW_FROM_COORD)); // https://issues.jboss.org/browse/JGRP-1751
  }
  catch(Throwable t) {
    handleException(t);
  }
  finally {
    if(isDigestNeeded()) {
      closeHoleFor(sender);
      openBarrierAndResumeStable();
    }
  }
}

public Object up(Message msg) {
  StateHeader hdr=msg.getHeader(this.id);
  if(hdr == null)
    return up_prot.up(msg);
  switch(hdr.type) {
    case StateHeader.STATE_REQ:
      state_requesters.add(msg.getSrc());
      break;
    case StateHeader.STATE_RSP:
      handleStateRsp(hdr.getDigest(), msg.getSrc(), msg.getBuffer());
      break;
    case StateHeader.STATE_EX:
      closeHoleFor(msg.getSrc());
      try {
        handleException(Util.exceptionFromBuffer(msg.getRawBuffer(), msg.getOffset(), msg.getLength()));
      }
      catch(Throwable t) {
        log.error("failed deserializaing state exception", t);
      }
      break;
    default:
      log.error("%s: type %s not known in StateHeader", local_addr, hdr.type);
      break;
  }
  return null;
}

/** Set the digest and the send the state up to the application */
protected void handleStateRsp(final Digest digest, Address sender, byte[] state) {
  try {
    if(isDigestNeeded()) {
      punchHoleFor(sender);
      closeBarrierAndSuspendStable(); // fix for https://jira.jboss.org/jira/browse/JGRP-1013
      if(digest != null)
        down_prot.down(new Event(Event.OVERWRITE_DIGEST, digest)); // set the digest (e.g. in NAKACK)
    }
    waiting_for_state_response=false;
    stop=System.currentTimeMillis();
    log.debug("%s: received state, size=%s, time=%d milliseconds", local_addr,
         (state == null? "0" : Util.printBytes(state.length)), stop - start);
    StateTransferResult result=new StateTransferResult(state);
    up_prot.up(new Event(Event.GET_STATE_OK, result));
    down_prot.down(new Event(Event.GET_VIEW_FROM_COORD)); // https://issues.jboss.org/browse/JGRP-1751
  }
  catch(Throwable t) {
    handleException(t);
  }
  finally {
    if(isDigestNeeded()) {
      closeHoleFor(sender);
      openBarrierAndResumeStable();
    }
  }
}

public Object up(Message msg) {
  StateHeader hdr=msg.getHeader(this.id);
  if(hdr == null)
    return up_prot.up(msg);
  switch(hdr.type) {
    case StateHeader.STATE_REQ:
      state_requesters.add(msg.getSrc());
      break;
    case StateHeader.STATE_RSP:
      handleStateRsp(hdr.getDigest(), msg.getSrc(), msg.getBuffer());
      break;
    case StateHeader.STATE_EX:
      closeHoleFor(msg.getSrc());
      try {
        handleException(Util.exceptionFromBuffer(msg.getRawBuffer(), msg.getOffset(), msg.getLength()));
      }
      catch(Throwable t) {
        log.error("failed deserializaing state exception", t);
      }
      break;
    default:
      log.error("%s: type %s not known in StateHeader", local_addr, hdr.type);
      break;
  }
  return null;
}